Erythema annulare centrifugum-like mycosis fungoides

Abstract

A considerable number of recent reports have documented mycosis fungoides resembling many other dermatoses. Due to highly variable presentations and the sometimes non-specific nature of histological findings, an accurate diagnosis of mycosis fungoides can be difficult. Erythema annulare centrifugum-like mycosis fungoides with a variety of annular, polycyclic erythematous skin lesions is a recently recognized atypical manifestation of mycosis fungoides, and only a few cases have been reported to date.

Epidermotropic secondary cutaneous involvement by relapsed angioimmunoblastic T‐cell lymphoma mimicking mycosis fungoides: a case report

“…Annular lesions are not the commonest clinical presentation of mycosis fungoides, but can be seen, and forms simulating erythema annulare have even been described. 4 The diagnosis of secondary cutaneous involvement by AITL was nevertheless suspected in the skin sample because of a previous history of AITL and confirmed by the immunohistochemical expression of T FH cell markers and the demonstration of an identical T-cell clone in the skin and the lymph node.…”

“…This patient presented with a previously undescribed form of purely cutaneous relapsed AITL, mimicking mycosis fungoides, with a widespread eruption made of annular erythematous plaques and patches histologically showing an epidermotropic lymphocytic infiltrate. Annular lesions are not the commonest clinical presentation of mycosis fungoides, but can be seen, and forms simulating erythema annulare have even been described . The diagnosis of secondary cutaneous involvement by AITL was nevertheless suspected in the skin sample because of a previous history of AITL and confirmed by the immunohistochemical expression of T FH cell markers and the demonstration of an identical T‐cell clone in the skin and the lymph node.…”

Mycosis fungoides presenting as symmetric concentric patches mimicking figurate erythema

“…Several case reports of MF presenting similarly to EAC as annular or polycyclic plaques are present in the literature 5 . Characteristic lesions of EAC present as erythematous rings, which expand outward with central clearing 6 .…”

Kutane Lymphome – ein vielgestaltiges Krankheitsbild

“…Farbveränderung Vitiligo [8 -10, 25, 44] Pityriasis alba [11] Pityriasis versicolor [12] postinflammatorische Hyperpigmentierungen [12] Acanthosis nigricans [13] ashy dermatosis [12] Plaque Verruca vulgaris [14] seborrhoische Keratose [15] Morbus Bowen [16] chronisch-diskoider Lupus erythematodes (CDLE) [17] inflammatorischer linearer verruköser epidermaler Nävus (ILVEN) [45] Hyperkeratose/ ekzemartig hyperkeratotisches Handekzem [18] Tinea manuum, Tinea pedis, Tinea corporis [18, 20 -22] Ichthyosis [19] Psoriasis vulgaris [2,23] periorale Dermatitis [24] seborrhoisches Ekzem [25] atopisches Ekzem [12] Keratosis lichenoides chronica [26] Papuloerythroderma Ofuji [27] dyshidrosiformes Handekzem [18] entzündlich Pyoderma gangraenosum [39,40] Erysipel [42,43] figuriert figurierte Erytheme [28,29] Erythema anulare centrifugum [2,30,31] Erythema multiforme [12] granulomatös granulomatöse Rosazea [46] Granuloma anulare [34] Sarkoidose [32] Lepra [12,33] bullös/pustulös bullöse Autoimmundermatosen [35,36] Pustulosis palmoplantaris [18,37,38] sonstig...…”

“…Mitunter sind Läsionen der Mycosis fungoides bizarr konfiguriert oder entwickeln im Krankheitsverlauf oder unter Therapie Regressionszonen, die an figurierte Erytheme [28,29], insbesondere das Erythema anulare centrifugum [2,30,31] oder das Erythema multiforme [12] erinnern.…”